Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Sisimiut is from July. — consistent weather climate
🌨Cold
| Score | 9 | 13 | 16 | 17 | 33 | 45 | 60 | 50 | 27 | 13 | 10 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Polar | Polar | Polar | Polar | Polar | Cold | Cold | Cold | Cold | Polar | Polar | Polar |
| Temperature | -17–-11°C | -20–-14°C | -15–-10°C | -8–-3°C | -3–2°C | 2–7°C | 6–11°C | 5–10°C | 1–6°C | -5–0°C | -11–-5°C | -14–-8°C |
| Feels like | -23–-17°C | -26–-20°C | -21–-15°C | -14–-7°C | -8–-2°C | -2–4°C | 3–9°C | 2–8°C | -3–2°C | -10–-4°C | -16–-10°C | -19–-13°C |
| Precipitation | 45mm 15 days | 26mm 10 days | 28mm 8 days | 50mm 11 days | 36mm 9 days | 41mm 10 days | 79mm 11 days | 66mm 11 days | 67mm 12 days | 71mm 13 days | 65mm 15 days | 57mm 14 days |
| Sunshine | 0.6h ☀︎ 13% | 3.2h ☀︎ 40% | 6.1h ☀︎ 52% | 8.0h ☀︎ 51% | 10.3h ☀︎ 51% | 9.8h ☀︎ 41% | 9.1h ☀︎ 41% | 7.6h ☀︎ 45% | 6.1h ☀︎ 46% | 3.7h ☀︎ 40% | 1.2h ☀︎ 22% | 0.0h ☀︎ 1% |
| Wind | NE · 23 km/h | NE · 20 km/h | NE · 20 km/h | NE · 21 km/h | N · 20 km/h | NW · 20 km/h | W · 19 km/h | W · 20 km/h | N · 20 km/h | E · 21 km/h | E · 22 km/h | NE · 21 km/h |
| Humidity (%) | 67% | 67% | 70% | 75% | 82% | 84% | 85% | 84% | 79% | 77% | 72% | 70% |
| Day length | 4.1h | 8.0h | 11.8h | 15.6h | 20.0h | 24.0h | 21.9h | 17.0h | 13.1h | 9.4h | 5.4h | 2.1h |
This grueling cross-country ski race takes teams across the frozen tundra outside Sisimiut over several days in late win…
Sisimiut draws its largest influx during the bitter, dark freeze of late winter, but the town is at its genuine peak in July, when summer opens the coastal tundra and leaves the streets blissfully uncrowded.
Perched on the granite bluffs of central-western Greenland where the cliffs plunge into the Davis Strait, Sisimiut has sustained human life for 4,500 years on seal, whale, and cod. It is a working town of brightly painted timber houses anchored to bare stone, where sled dogs howl against the wind and commercial trawlers clatter in the harbour. Most travellers arrive expecting an endless, impenetrable freeze, and for much of the year, that is precisely what they get. Yet the rhythm of this Arctic outpost holds an inversion: while the outside world flocks here during the sub-zero endurance spectacles of late winter, the most rewarding, expansive time to walk its valleys is the brief, sunlit warmth of midsummer.
July is the undeniable pinnacle of the year in Sisimiut. After nine months of snow cover, the tundra erupts into damp greens and rusts, the sea ice dissolves into open blue water, and temperatures break into double digits. Your body registers warmth for the first time all year. The sun lingers in the sky for over nine hours a day, bathing the pyramidal peak of Nasaasaaq in golden light long into the evening. You can hike the ridges without snowshoes, tracing ancestral paths where Saqqaq and Dorset hunters once stalked game.
What makes July genuinely extraordinary is that hardly anyone else is here. While modern tourism crowds Sisimiut during the snow season, July sees visitor numbers plunge to their yearly low. You have the trails, the coastal lookouts, and the quiet clapboard lanes to yourself. Rainfall ticks upward—you will encounter mist, drizzle, and damp sea fog drifting in off the Davis Strait—but it rarely falls with enough force to halt a hike. By August, late summer settles in; the air crisps slightly, evenings lengthen, and local boats comb the fjords for the seasonal harvest before the frost returns.
Autumn in Sisimiut is not a slow decline; it is an abrupt slam of the Arctic door. September begins with lingering daylight, but within weeks the temperature plunges toward freezing and stays there. The mosses and dwarf willows on the lower slopes of Nasaasaaq turn brown, then disappear beneath the first persistent dustings of powder.
By October, daytime highs struggle to reach zero, and what falls from the sky is a biting mix of sleet and driving snow. The harbour docks glaze over, and the town shifts indoors. Unless you are drawn specifically by the grim majesty of an Arctic landscape battening down the hatches, this is the worst window to visit. The ground is too wet and frozen for clean walking, yet the snow cover is not yet stable enough for winter trails.
Winter descends with total finality in November. Daylight contracts rapidly until December, when the sun disappears beneath the horizon and Sisimiut enters weeks of polar twilight. Apparent temperatures drop well below minus ten, driven lower by sharp maritime gales sweeping across the open sea. Snow covers every rooftop, road, and rocky outcrop, leaving the town looking like an isolated diorama of red, blue, and yellow squares against white.
Curiously, December and January see an influx of visitors, drawn by holiday traditions, dogsledding, and the sheer atmospheric extremity of life above the Arctic Circle. Stepping outdoors requires heavy thermal armour, and any exposed skin stings instantly. The landscape is profoundly still, broken only by the hum of snowmobiles and the crunch of studded boots on packed ice.
This is the period the consensus points to, and the reason Sisimiut registers its absolute highest crowd levels in March. The sun has climbed back into the sky, reflecting blindingly off endless fields of snow, but the cold remains merciless. In February and March, the windchill frequently drives what your body feels down near minus twenty.
Yet the town hums with electric energy. In March and April, the Arctic Circle Race brings hundreds of elite cross-country skiers and support crews to town for one of the toughest endurance marathons on earth, tackling three days of brutal, frozen backcountry. Sled dog teams fan out across the snow passes behind town, and the sea ice groans against the rocky coastline. It is a thrilling, communal time to experience Greenlandic winter culture—provided you possess the gear and fortitude to withstand the punishing freeze.
May brings daylight that refuses to end, stretching beyond ten hours of direct sunshine, but the landscape is caught in an awkward transition. The massive snowpack begins to melt, turning trails into rushing runnels of mud and slush. The frozen crust gives way beneath your boots, making travel across the hills outside Sisimiut frustrating and exhausting.
By June, the melt accelerates into true Arctic spring. Temperatures cross above freezing, the scent of the ocean returns to the air, and coastal birds arrive in force along the headlands. It is a raw, honest time to see Sisimiut waking up from its long hibernation, though sensible walking requires sturdy waterproof boots and an acceptance of grey gravel and melting snowbanks.